CN203071418U - Grounding device for electric switch cabinet and ground stud - Google Patents
Grounding device for electric switch cabinet and ground stud Download PDFInfo
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- CN203071418U CN203071418U CN 201320039079 CN201320039079U CN203071418U CN 203071418 U CN203071418 U CN 203071418U CN 201320039079 CN201320039079 CN 201320039079 CN 201320039079 U CN201320039079 U CN 201320039079U CN 203071418 U CN203071418 U CN 203071418U
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- ground stud
- earth connection
- connection joint
- switch cabinet
- ground
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Abstract
The utility model provides a grounding device for an electric switch cabinet, comprising a ground stud and a first ground lead connector. A circumferential outer surface of the ground stud is provided with external threads. A contactor body of the first ground lead connector is provided with a threaded hole corresponding to the external threads. When a grounding device for an electric switch cabinet is mounted at a base pin of the switch cabinet due to the spatial limitation of the switch cabinet, the grounding device for the electric switch cabinet provided by the utility model enables an operator to screw downward the first ground lead connector, utilizes upper and lower room of the ground stud for carrying out operation, enables the threaded hole of the first ground lead connector and the external threads of the ground stud to be firmly cooperated, and helps the operator to fasten the ground lead. In addition, as the ground stud and the first ground lead connector of the electric switch cabinet are firmly cooperated through threads, firmness and reliability are relatively high and safety hidden troubles are reduced. The utility model also provided with a ground stud which helps the operator to fasten the ground lead and reduces safety hidden troubles.
Description
Technical field
The utility model relates to electric power auxiliary equipment technical field, more particularly, relates to a kind of power switch cabinet earthing device, and the utility model also relates to a kind of ground stud.
Background technology
Suddenly charged and cause injury to personnel for fear of equipment, in the work of electric power overhaul, must carry out effective grounding to the power equipment of interruption maintenance after, just allow the maintainer that equipment is carried out service work.So, near power equipment, all the earthing device that is specifically designed to equipment ground can be installed, this earthing device comprises ground stud and earth connection joint, the end of earth connection links to each other with the earth connection joint, head end is fastened on the power equipment, pass through the ground connection with the fixedly realization power equipment conducting position of earth connection joint and ground stud then, make the current potential of power equipment reach zero potential.
In the earthing device commonly used, the centre of ground stud offers the circular mounting hole that along continuous straight runs extends, and the earth connection joint is provided with the bolt that matches with above-mentioned circular mounting hole, and ground stud and earth connection joint are grounded the fastening of line by the perforation fastening-type; Be specially: the end of earth connection is fixed on the earth connection joint, make the bolt of earth connection joint pass above-mentioned circular mounting hole then, be grounded the fastening of wire terminal by the fastening of nut and bolt, and then be grounded fastening between line and the ground stud.
Because bolts and nuts need screw along horizontal direction in the aforesaid operations, so require the ground stud place to have certain operating space (being space, the left and right sides or space, front and back).But because the switch cubicle four sides all has the cabinet wall, power equipment in the cubicle switch cabinet is subjected to the restriction in switch cubicle space, ground stud is normally placed in switch cubicle corner, so there is certain difficulty in operation when adopting the fastening earth connection joint of in the past perforation fastening-type, be not easy to operating personnel's tightening nut, cause that the earth connection joint is fixing insecurely to be prone to looseningly, have certain potential safety hazard.
In sum, how providing a kind of power switch cabinet earthing device, so that operating personnel carry out earth connection is fastening, reduce potential safety hazard, is the technical problem that present those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of power switch cabinet earthing device, so that operating personnel carry out earth connection is fastening, reduces potential safety hazard.
The utility model also provides a kind of ground stud, is convenient to operating personnel and earth connection is carried out fastening, has reduced potential safety hazard.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of power switch cabinet earthing device comprises ground stud and the first earth connection joint, and the circumferential outer surface of described ground stud is provided with external screw thread, and the joint body of the described first earth connection joint is provided with the screwed hole that matches with described external screw thread.
Preferably, in the above-mentioned power switch cabinet earthing device, also comprise the second earth connection joint, the described second earth connection joint is provided with bolt, offer the manhole that passes for described bolt on the described ground stud, the central axis of described manhole and the axis of described ground stud are perpendicular.
Preferably, in the above-mentioned power switch cabinet earthing device, also comprise the 3rd earth connection joint, offer the through hole that described ground stud can be sheathed in it on the joint body of described the 3rd earth connection joint, the inwall of described through hole is provided with annular spacing groove;
Also be provided with the spring eye that spring and spacing described spring are used on the described ground stud, the two ends of described spring are connected with respectively when described spring reset, protrude from the circumferential surface of described ground stud, and can be fastened on the buckle in the described annular spacing groove.
Preferably, in the above-mentioned power switch cabinet earthing device, described ground stud comprises cylinder and is arranged on the base of described cylinder bottom that described manhole is arranged on the described cylinder, described spring eye is arranged on the described base, and the diameter of described base is greater than the diameter of described cylinder.
Preferably, in the above-mentioned power switch cabinet earthing device, described ground stud all is set to the plane perpendicular with the central axis of described manhole in two exits of described manhole.
From above-mentioned technical scheme as can be seen, the power switch cabinet earthing device that the utility model provides comprises ground stud and the first earth connection joint, the circumferential outer surface of ground stud is provided with external screw thread, and the joint body of the first earth connection joint is provided with the screwed hole that matches with external screw thread.
When using above-mentioned power switch cabinet earthing device dead earth line, at first earth connection is fixed on the first earth connection joint, make the screwed hole of the first earth connection joint aim at ground stud then, make the first earth connection fitting sleeve be located at the periphery of ground stud, the first earth connection joint is screwed along external screw thread, thereby realize that the first earth connection joint is fastened on the ground stud, and then be grounded fastening between line and the ground stud.
When using above-mentioned power switch cabinet earthing device, at first ground stud is vertically mounted on the ground, because the external screw thread of ground stud is arranged on the circumferential outer surface of ground stud, so external screw thread vertically extends, then the external screw thread length that stretches into screwed hole realizes by the turn first earth connection joint up and down, screws downwards when the first earth connection joint namely increases the length that external screw thread enters screwed hole to realize the fastening of the first earth connection joint and ground stud.So, when being subjected to the restriction in switch cubicle space, the power switch cabinet earthing device is installed in switch cubicle pin place, the lateral operation space that causes the ground stud place hour, the power switch cabinet earthing device that the utility model provides can make operating personnel by screwing the first earth connection joint downwards, utilize the space up and down at ground stud place to operate, it is fastening that the screwed hole of the first earth connection joint is cooperated with the external screw thread of ground stud, is convenient to operating personnel's fastening to earth connection; Simultaneously, because the ground stud of above-mentioned power switch cabinet earthing device and the first earth connection joint are fastening by threaded engagement, fastness and reliability are higher, have reduced potential safety hazard.
The utility model also provides a kind of ground stud, and the circumferential outer surface of described ground stud is provided with the external screw thread that can match with the screwed hole of the first earth connection joint.
Preferably, offer the manhole that the bolt for the second earth connection joint passes on the above-mentioned ground stud, the central axis of described manhole and the axis of described ground stud are perpendicular.
Preferably, also be provided with spring on the above-mentioned ground stud and offer the spring eye that spacing described spring is used, the two ends of described spring are connected with respectively when described spring reset, protrude from the buckle of the circumferential surface of described ground stud.
Preferably, above-mentioned ground stud comprises cylinder and the base that is arranged on described cylinder bottom, and described manhole is arranged on the described cylinder, and described spring eye is arranged on the described base, and the diameter of described base is greater than the diameter of described cylinder.
Preferably, above-mentioned ground stud all is set to the plane perpendicular with the central axis of described manhole in two exits of described manhole.
From above-mentioned technical scheme as can be seen, the circumferential outer surface of the ground stud that provides of the utility model is provided with the external screw thread that can match with the screwed hole of the first earth connection joint.When utilizing this ground stud to carry out earth connection fastening, at first earth connection is fixed on the first earth connection joint, the external screw thread of then screwed hole of the first earth connection joint being aimed at ground stud is screwed downwards, to increase the length that external screw thread stretches into screwed hole, it is fastening that the screwed hole of the first earth connection joint is cooperated with the external screw thread of ground stud, and then be grounded the fastening of line.
When using above-mentioned ground stud, at first it is vertically mounted on the ground, because the external screw thread of ground stud is arranged on the circumferential outer surface of ground stud, so external screw thread vertically extends, then the external screw thread length that stretches into screwed hole realizes by the turn first earth connection joint up and down, screws downwards when the first earth connection joint namely increases the length that external screw thread enters screwed hole to realize the fastening of the first earth connection joint and ground stud.So, when being subjected to the restriction in switch cubicle space, ground stud is installed in switch cubicle pin place, the lateral operation space that causes the ground stud place hour, the ground stud that the utility model provides can make operating personnel by screwing the first earth connection joint downwards, utilize the space up and down at ground stud place to operate, it is fastening that the screwed hole of the first earth connection joint is cooperated with the external screw thread of ground stud, is convenient to operating personnel's fastening to earth connection; Simultaneously, because above-mentioned ground stud and the first earth connection joint are fastening by threaded engagement, fastness and reliability are higher, have reduced potential safety hazard.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the front view of the ground stud that provides of the utility model embodiment;
Fig. 2 is the vertical view of the ground stud that provides of the utility model embodiment;
Fig. 3 is the structural representation of the first earth connection joint that provides of the utility model embodiment;
Fig. 4 is the structural representation of the second earth connection joint that provides of the utility model embodiment;
Fig. 5 is another structural representation of the second earth connection joint that provides of the utility model embodiment;
Fig. 6 is another structural representation of the 3rd earth connection joint that provides of the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of power switch cabinet earthing device, is convenient to operating personnel and earth connection is carried out fastening, has reduced potential safety hazard.
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1-6, the power switch cabinet earthing device that the utility model embodiment provides, comprise ground stud 1 and the first earth connection joint 2, the joint body 21 that the circumferential outer surface of ground stud 1 is provided with external screw thread 11, the first earth connection joints 2 is provided with the screwed hole 22 that matches with external screw thread 11.
When using above-mentioned power switch cabinet earthing device dead earth line 6, at first earth connection 6 is fixed on the first earth connection joint 2, make the screwed hole 22 of the first earth connection joint 2 aim at ground stud 1 then, make the first earth connection joint 2 be set in the periphery of ground stud 1, the first earth connection joint is screwed along external screw thread 11, thereby realize that the first earth connection joint 2 is fastened on the ground stud 1, and then be grounded fastening between line 6 and the ground stud 1.
When using above-mentioned power switch cabinet earthing device, at first ground stud 1 is vertically mounted on the ground, because the external screw thread 11 of ground stud 1 is arranged on the circumferential outer surface of ground stud 1, so external screw thread 11 vertically extends, then external screw thread 11 length that stretches into screwed hole 22 realizes by the turn first earth connection joint 2 up and down, screws downwards to realize the fastening of the first earth connection joint 2 and ground stud 1 when the first earth connection joint 2 namely increases the length that external screw thread 11 enters screwed hole 22.So, when being subjected to the restriction in switch cubicle space, the power switch cabinet earthing device is installed in switch cubicle pin place, the lateral operation space that causes ground stud 1 place hour, the power switch cabinet earthing device that the utility model embodiment provides can make operating personnel by screwing the first earth connection joint 2 downwards, utilize the space up and down at ground stud 1 place to operate, it is fastening that the screwed hole 22 of the first earth connection joint 2 is cooperated with the external screw thread 11 of ground stud 1, is convenient to operating personnel's fastening to earth connection 6; Simultaneously, because the ground stud 1 of above-mentioned power switch cabinet earthing device and the first earth connection joint 2 are fastening by threaded engagement, fastness and reliability are higher, have reduced potential safety hazard.
Preferably, in the power switch cabinet earthing device that above-described embodiment provides, comprise that also the second earth connection joint, 3, the second earth connection joints 3 are provided with bolt 31, offer the manhole 16 that passes for bolt 31 on the ground stud 1, the axis of the central axis of manhole 16 and ground stud 1 is perpendicular.
In the present embodiment, also be provided with the manhole 16 that can match with the bolt 31 of the second earth connection joint 3 on the ground stud 1, under the situation of the space of switch cubicle permission, in the time of can carrying out lateral operation, at the ground stud 1 of present embodiment, can also adopt traditional perforation fastening-type to carry out fastening to earth connection 6.Its operating process is as follows:
At first earth connection 6 is fastened on the second earth connection joint 3, makes the bolt 31 of the second earth connection joint 3 pass manhole 16 then, bolt 31 is fixed on the ground stud 1 can be grounded the fastening of line 6 at last.Concrete, when the second earth connection joint 3 is as shown in Figure 2 structure, by being set on the bolt 31 and with nut 32, nut 32 screws to realize bolt 31 is fixed on the ground stud 1.
In another embodiment, when the second earth connection joint 3 is as shown in Figure 3 structure, when cooperating with bolt 31 by door shape cylinder 33, after bolt 31 passed manhole 16, bolt 31 is screwed, it is fastened on realizes on the shape cylinder 33 the second earth connection joint 3 is fixed on the ground stud 1.
So, above-mentioned power switch cabinet earthing device has two kinds of modes that realize fastening earth connection 6, can select a kind of fastening means according to the space of switch cubicle and the installation site of ground stud 1, by the first earth connection joint 2 and external screw thread 11 cooperate or bolt 31 by the second earth connection joint 3 passes manhole 16 and carries out fastening again.Above-mentioned power switch cabinet earthing device has the earthing mode of two kinds of functions, can be applicable to the ground connection of earth connection of the switch cubicle of diverse location, can adopt the most quick, reliable effective mode again to be grounded fastening between line 6 and the ground wire stake 1, highly versatile when facing different site environments and real space.
Further in the execution mode, the power switch cabinet earthing device comprises also on the joint body 43 of the 3rd earth connection joint 4, the three earth connection joints 4 and offers the through hole 42 that ground stud 1 can be sheathed in it that inwall of through hole 42 is provided with annular spacing groove 41;
Also be provided with the spring eye of spring 14 and limit spring 14 usefulness on the ground stud 1, the two ends of spring 14 are connected with respectively when spring 14 resets, and protrude from the circumferential surface of ground stud 1, and can be fastened on the buckle 15 in the annular spacing groove 41.As depicted in figs. 1 and 2, spring 14 is positioned at spring eye, and its two ends are respectively arranged with buckle 15, and the while is limited in for the ease of buckle 15 or breaks away from stopper slot 41, and the end of buckle is set to arc shape.
Space in switch cubicle causes the space of dead earth line 6 and earth connection joint not enough, screw up and down and laterally screw (screwing of along continuous straight runs) when all being not easy to operate, then can use the 3rd earth connection joint 4 of above-mentioned power switch cabinet earthing device to adopt buckle-type to fix with ground stud 1, its fixation procedure is as follows:
At first earth connection 6 is fastened on the 3rd earth connection joint 4, then the through hole 42 of the 3rd earth connection joint 4 is aimed at ground stud 1, make the 3rd earth connection joint 4 be set in the outside of ground stud 1, the inwall that utilizes through hole 42 pushes the buckle 15 at spring 14 two ends, in the process that the outer wall of the 3rd earth connection joint 4 and ground stud 1 relatively moves, buckle 15 stressed in the spring eye mobile and then compression spring 14, when annular spacing groove 41 is relative with the position of buckle 15, buckle 15 and the inwall that breaks away from through hole 42, because moved laterally by the restoring force of spring 14 just in time is fastened in the annular spacing groove 41, thereby the 3rd earth connection joint 4 is fixed on the ground stud 1, has realized the fixing of earth connection 6.
As from the foregoing, above-mentioned power switch cabinet earthing device has three kinds of modes that realize fastening earth connection 6, can select a kind of fastening means according to the space of switch cubicle and the installation site of ground stud 1, can not screw when operation when the space at ground stud 1 place is very little, adopt the mode of buckles to carry out fastening by the 3rd earth connection joint 4; When the space at ground stud 1 place can only be screwed operation up and down, adopt the mode of screwing to carry out fastening by the first earth connection joint 2; When the space at ground stud 1 place is enough big, can also adopt the fastening mode of traditional perforation to utilize the second earth connection joint 3 to carry out fastening.Above-mentioned power switch cabinet earthing device has the earthing mode of three kinds of functions, has enlarged range of application, can be applicable to the ground connection operation of earth connection 6 at the switch cubicle place of different spaces, has improved versatility.
Concrete, in the power switch cabinet earthing device that above-described embodiment provides, ground stud 1 comprises cylinder 12 and is arranged on the base 13 of cylinder 12 bottoms that manhole 16 is arranged on the cylinder 12, spring eye is arranged on the base 13, and the diameter of base 13 is greater than the diameter of cylinder 12.Because when adopting buckle-type fixedly, the 3rd earth connection joint 4 need pass cylinder 12 could arrive base 13 outsides, makes buckle 15 spacing in annular spacing groove 41, so make the diameter of base 13 greater than the diameter of cylinder 12, be convenient to the carrying out of buckle operation.
In order further to optimize technique scheme, in the above-mentioned power switch cabinet earthing device, ground stud 1 all is set to the plane 17 perpendicular with the central axis of manhole 16 in two exits of manhole 16.So, adopt traditional fastening mode of perforation to utilize the second earth connection joint 3 to carry out when fastening, when screwing nut 32 and making itself and bolt 31 fastening, can increase the contact area of head and nut 32 and the ground stud 1 of bolt 31, improve fastening strength, guarantee stability, reduce potential safety hazard.
The utility model embodiment also provides a kind of ground stud, and the circumferential outer surface of ground stud 1 is provided with the external screw thread 11 that can match with the screwed hole 22 of the first earth connection joint 2.
When utilizing this ground stud 1 to carry out earth connection 6 fastening, at first earth connection 6 is fixed on the first earth connection joint 2, the external screw thread 11 that the screwed hole 22 of the first earth connection joint 2 is aimed at ground stud 1 is screwed downwards then, to increase the length that external screw thread 11 stretches into screwed hole 22, it is fastening that the screwed hole 22 of the first earth connection joint 2 is cooperated with the external screw thread 11 of ground stud 1, and then be grounded the fastening of line 6.
When using above-mentioned ground stud 1, at first it is vertically mounted on the ground, because the external screw thread 11 of ground stud 1 is arranged on the circumferential outer surface of ground stud 1, so external screw thread 11 vertically extends, then external screw thread 11 length that stretches into screwed hole 22 realizes by the turn first earth connection joint 2 up and down, screws downwards to realize the fastening of the first earth connection joint 2 and ground stud 1 when the first earth connection joint 2 namely increases the length that external screw thread 11 enters screwed hole 22.So, when being subjected to the restriction in switch cubicle space, ground stud 1 is installed in switch cubicle pin place, the lateral operation space that causes ground stud 1 place hour, the ground stud 1 that the utility model embodiment provides can make operating personnel by screwing the first earth connection joint 2 downwards, utilize the space up and down at ground stud 1 place to operate, it is fastening that the screwed hole 22 of the first earth connection joint 2 is cooperated with the external screw thread 11 of ground stud 1, is convenient to operating personnel's fastening to earth connection 6; Simultaneously, because above-mentioned ground stud 1 and the first earth connection joint 2 are fastening by threaded engagement, fastness and reliability are higher, have reduced potential safety hazard.
Preferably, offer the manhole 16 that the bolt 31 for the second earth connection joint 3 passes on the ground stud 1 that above-described embodiment provides, the axis of the central axis of manhole 16 and ground stud 1 is perpendicular.
Under the situation of the space of switch cubicle permission, in the time of can carrying out lateral operation, at the ground stud 1 of present embodiment, can also adopt traditional perforation fastening-type to carry out fastening to earth connection 6.Its operating process is: at first earth connection 6 is fastened on the second earth connection joint 3, makes the bolt 31 of the second earth connection joint 3 pass manhole 16 then, bolt 31 is fixed on the ground stud 1 can be grounded the fastening of line 6 at last.
Above-mentioned ground stud 1 can cooperate with two kinds of earth connection joints respectively, have two kinds of modes that realize fastening earth connection 6, can select a kind of fastening means according to the space of switch cubicle and the installation site of ground stud 1, by the first earth connection joint 2 and external screw thread 11 cooperate or bolt 31 by the second earth connection joint 3 passes manhole 16 and carries out fastening again.Above-mentioned ground stud 1 can be applicable to the ground connection of earth connection of the switch cubicle of diverse location, can adopt the most quick, reliable effective mode again to be grounded fastening between line 6 and the ground wire stake 1, highly versatile when facing different site environments and real space.
Further in the scheme, also be provided with spring 14 on the ground stud 1 and offer the spring eye of limit spring 14 usefulness, the two ends of spring 14 are connected with respectively when spring 14 resets, and protrude from the buckle 15 of the circumferential surface of ground stud 1.
Space in switch cubicle causes the space of ground stud 1 place's dead earth line 6 and earth connection joint not enough, screw up and down and laterally screw (screwing of along continuous straight runs) when all being not easy to operate, then can use buckle 15 and the 3rd earth connection joint 4 of ground stud 1 to adopt buckle-type to fix, its fixation procedure is: at first earth connection 6 is fastened on the 3rd earth connection joint 4, then the through hole 42 of the 3rd earth connection joint 4 is aimed at ground stud 1, make the 3rd earth connection joint 4 be set in the outside of ground stud 1, the inwall that utilizes through hole 42 pushes the buckle 15 at spring 14 two ends, in the process that the outer wall of the 3rd earth connection joint 4 and ground stud 1 relatively moves, buckle 15 stressed in the spring eye mobile and then compression spring 14, when annular spacing groove 41 is relative with the position of buckle 15, buckle 15 and the inwall that breaks away from through hole 42, because moved laterally by the restoring force of spring 14 just in time is fastened in the annular spacing groove 41, thereby the 3rd earth connection joint 4 is fixed on the ground stud 1, has realized the fixing of earth connection 6.
Above-mentioned ground stud 1 has three kinds of modes that realize fastening earth connection 6, can select a kind of fastening means according to the space of switch cubicle and the installation site of ground stud 1, enlarge range of application, can be applicable to the ground connection operation of earth connection 6 at the switch cubicle place of different spaces, improved versatility.
Concrete, ground stud 1 comprises cylinder 12 and the base 13 that is arranged on cylinder 12 bottoms, and manhole 16 is arranged on the cylinder 12, and spring eye is arranged on the base 13, and the diameter of base 13 is greater than the diameter of cylinder 12.When adopting buckle-type fixedly, the 3rd earth connection joint 4 passes cylinder 12 could arrive base 13 outsides, makes buckle 15 spacing in annular spacing groove 41, and the diameter of the base 13 of present embodiment is convenient to the carrying out of buckle operation greater than the diameter of cylinder 12.
Preferably, above-mentioned ground stud 1 all is set to the plane 17 perpendicular with the central axis of manhole 16 in two exits of manhole 16.Adopt traditional fastening mode of perforation to utilize the second earth connection joint 3 to carry out when fastening, when screwing nut 32 and making itself and bolt 31 fastening, can increase the contact area of the head of bolt 31 and nut 32 and ground stud 1, improve fastening strength, guarantee stability, reduced potential safety hazard.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. power switch cabinet earthing device, comprise ground stud (1) and the first earth connection joint (2), it is characterized in that, the circumferential outer surface of described ground stud (1) is provided with external screw thread (11), and the joint body (21) of the described first earth connection joint (2) is provided with the screwed hole (22) that matches with described external screw thread (11).
2. power switch cabinet earthing device according to claim 1, it is characterized in that, also comprise the second earth connection joint (3), the described second earth connection joint (3) is provided with bolt (31), offer the manhole (16) that passes for described bolt (31) on the described ground stud (1), the axis of the central axis of described manhole (16) and described ground stud (1) is perpendicular.
3. power switch cabinet earthing device according to claim 2, it is characterized in that, also comprise the 3rd earth connection joint (4), offer the through hole (42) that described ground stud (1) can be sheathed in it on the joint body (43) of described the 3rd earth connection joint (4), the inwall of described through hole (42) is provided with annular spacing groove (41);
Also be provided with the spring eye of spring (14) and spacing described spring (14) usefulness on the described ground stud (1), the two ends of described spring (14) are connected with respectively when described spring (14) when resetting, protrude from the circumferential surface of described ground stud (1), and can be fastened on the buckle (15) in the described annular spacing groove (41).
4. power switch cabinet earthing device according to claim 3, it is characterized in that, described ground stud (1) comprises cylinder (12) and is arranged on the base (13) of described cylinder (12) bottom, described manhole (16) is arranged on the described cylinder (12), described spring eye is arranged on the described base (13), and the diameter of described base (13) is greater than the diameter of described cylinder (12).
5. power switch cabinet earthing device according to claim 2 is characterized in that, described ground stud (1) all is set to the plane (17) perpendicular with the central axis of described manhole (16) in two exits of described manhole (16).
6. a ground stud is characterized in that, the circumferential outer surface of described ground stud (1) is provided with the external screw thread (11) that can match with the screwed hole (22) of the first earth connection joint (2).
7. ground stud according to claim 6, it is characterized in that, offer the manhole (16) that the bolt (31) for the second earth connection joint (3) passes on the described ground stud (1), the axis of the central axis of described manhole (16) and described ground stud (1) is perpendicular.
8. ground stud according to claim 7, it is characterized in that, also be provided with spring (14) on the described ground stud (1) and offer the spring eye of spacing described spring (14) usefulness, the two ends of described spring (14) are connected with respectively when described spring (14) when resetting, and protrude from the buckle (15) of the circumferential surface of described ground stud (1).
9. ground stud according to claim 8, it is characterized in that, described ground stud (1) comprises cylinder (12) and is arranged on the base (13) of described cylinder (12) bottom, described manhole (16) is arranged on the described cylinder (12), described spring eye is arranged on the described base (13), and the diameter of described base (13) is greater than the diameter of described cylinder (12).
10. ground stud according to claim 7 is characterized in that, described ground stud (1) all is set to the plane (17) perpendicular with the central axis of described manhole (16) in two exits of described manhole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039079 CN203071418U (en) | 2013-01-24 | 2013-01-24 | Grounding device for electric switch cabinet and ground stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039079 CN203071418U (en) | 2013-01-24 | 2013-01-24 | Grounding device for electric switch cabinet and ground stud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071418U true CN203071418U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320039079 Expired - Lifetime CN203071418U (en) | 2013-01-24 | 2013-01-24 | Grounding device for electric switch cabinet and ground stud |
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| Country | Link |
|---|---|
| CN (1) | CN203071418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825112A (en) * | 2014-02-25 | 2014-05-28 | 国家电网公司 | Low-voltage cable branch box grounding extending hanging piece and grounding method thereof |
-
2013
- 2013-01-24 CN CN 201320039079 patent/CN203071418U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825112A (en) * | 2014-02-25 | 2014-05-28 | 国家电网公司 | Low-voltage cable branch box grounding extending hanging piece and grounding method thereof |
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